Kwai Lun Mei plays Duo Er, a girl who likes coffee and dessert and wants to open her own coffee shop. Recently, Lin Chenxi, who became popular in motorcycle advertisements, played Qianger, a sister. The two sisters had an accident with their coffee, and they began to exchange things. Guests coming and going in the coffee shop, including "Qunqing" played by Hans Zhang, brought many stories to the coffee shop. Dense street trees embrace the quiet street, and the "Duoer Cafe" on the roadside lights up warmly. The owner of the cafe is a pair of young sisters-Duo Er and Qiang Er. Because she likes coffee and desserts, Dora used her savings from work and the support of her family to build a unique "Dora Cafe" with her sister Qiang. In her imaginary blueprint, she is the signboard of this cafe, just like concentric circles. Her good friends will bring another group of good friends to join in, and her popularity will be transformed into waves of popularity in the store. Sure enough, on the opening day, many friends came and brought many interesting gifts. Dora was very happy and said that she wanted to keep the store running for a long time. It still rings in my ears, but the operation after opening the store is disappointing. For several days, the guests were sparse, and the empty storefront was more deserted than the gifts sent by the warehouse. Doll's good popularity has become the burden of warehousing. After a bad start, Duo Er and Qiang Er started a "barter" activity in an accidental conversation. In this cafe, the only thing that money can buy is coffee. If guests want other things, they must exchange the same things with their hosts. Therefore, guests can exchange six million dollar man dolls for an old photo and Qingshuigou for Thai recipes in the store. They don't talk about objective amounts, but only care about each other's understanding of value. "Duoer Cafe" is no longer just an ordinary cafe, but more like a distribution center connecting urban emotions. The idea unexpectedly attracted more and more guests, including an assistant pilot, Qun Qing, who brought stories of 35 cities. The process of these exchanges constantly made Duo and Qiang re-evaluate their own judgment standards, and finally even changed their values, so that they decided to set out to find the 36th story and practice their goals.